Posts Tagged: UC Davis Department of Evollution and Ecology

Are Western Monarchs Heading for Extinction?

Are western monarch butterflies heading for extinction? A Sept. 7 article in Reuters, headlined "Monarchs in Western United States Risk Extinction,...

A male monarch takes flight on Sept. 12 in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

A male monarch takes flight on Sept. 12 in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

A male monarch heads for another flower on tropical milkweed, Asclepias curassavica, in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

A male monarch heads for another flower on tropical milkweed, Asclepias curassavica, in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Startled, a male monarch abruptly leaves a tropical milkweed blossom, Asclepias curassavica, in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Startled, a male monarch abruptly leaves a tropical milkweed blossom, Asclepias curassavica, in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Monarchs nectaring on tropical milkweed, Asclepias curassavica, in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Monarchs nectaring on tropical milkweed, Asclepias curassavica, in Vacaville, Calif. (Photo by Kathy Keatley Garvey)